package thread;

import java.util.concurrent.Executor;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class ThreadPoolDemo {
    public static void main(String[] args) {
        ExecutorService pool = Executors.newFixedThreadPool(2);
        for (int i = 0; i < 5; i++) {
            Runnable r = new Runnable() {
                @Override
                public void run() {
                    Thread t = Thread.currentThread();
                    System.out.println(t + "正在执行");
                    try {
                        Thread.sleep(5000);
                    } catch (InterruptedException e) {
                    }
                    System.out.println(t + "完毕");
                }
            };
            pool.execute(r);
            System.out.println("将一个任务交给线程池");
        }
        pool.shutdown();
        //pool.shotdownNow();
        System.out.println("线程池已关闭");
    }
}
